Goldilocks was walking in the forest, when she came upon a house. She rang the doorbell a few times and no one answered, so she walked inside. Goldilocks observed or sensed that there were three bowls of what seemed like porridge on the kitchen table. She inferred (what you think about) that the three bowls of porridge would all be different temperatures, so the IV (the object you change in an experiment) is type of porridge. Then Goldilocks took out a thermometer and decided to find the levels of IV (what your experimenting with) and measured that the first bowl was 100 degrees C, the second was 0 degrees C, and the third bowl was 65 degrees C. She wanted to know what temperature of porridge was eaten the most, or the DV which is what you are measuring. She took the porridge and dumped each bowl into a machine that told how many ounces of porridge was in each bowl, or in other words she found the unit of measurement which is what you are measuring with. She had to know that each bowl was the same and had the same porridge in each bowl ( or the constants) so her experiment wouldn't be messed up. All she had to do to finish was to find the purpose of the experiment, or what is the point of the experiment Goldilocks then said in a proud voice, "The purpose of this experiment was to determine the effect of temperature on how much was eaten." Later she strolled back to her science lab to show her experiment to her fellow scientist friends.